What are the negative effects of airplanes?

Aircraft noise pollution disrupts sleep, children's education and could increase cardiovascular risk. Airports can generate water pollution due to their extensive handling of jet fuel and deicing chemicals if not contained, contaminating nearby water bodies.



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The cramped conditions and long periods of being less active on a flight can cause pain, stiffness or swelling of your legs. Being less active can lead to slow blood flow in your veins which increases your risk of developing a blood clot, known as deep vein thrombosis (DVT). DVTs most commonly form in the legs.

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When flying at altitude, the reduced air pressure leads to an element of hypoxia meaning less oxygen is getting to your brain. This can lead to a decrease in cognitive performance and reasoning (though usually, this is only a mild effect in the pressurised cabin) more noticeable in the very young and older people.

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Air pressure is lower at higher altitudes, which means your body takes in less oxygen. Airlines “pressurize” the air in the cabin, but not to sea-level pressures, so there's still less oxygen getting to your body when you fly, which can make you feel drained or even short of breath.

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Approach and landing is the highest risk phase of flight, accounting for over 50 percent of all accidents at every level of aviation.

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Dr. O'Rourke believes people are just as likely to catch germs from the air in an airplane as they are in any other enclosed space thanks to HEPA filters and air circulating, but people can still catch germs from hand-to-mouth contact, which may occur if you're snacking on the plane and don't have proper cutlery.

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For example, a study by the University of Michigan Transportation Research Institute states the energy intensity of car transportation is on average 57% higher than air transports. In other words, a car emits more CO2 than the average planes because they consume more energy to transport the same amount of passengers.

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If you don't shower and bacteria and fungi do catch a ride back to your hotel with you, Tetro says you may end up depositing germs that aren't your own into your new space—particularly your bed.

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According to the National Institute of Mental Health, being anxious about flying, or aerophobia, is the second biggest fear in the U.S. The Anxiety and Depression Association of America says that fear of flying is often caused by fear of other things, like being in an enclosed space or something bad happening in the ...

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The list of triggers is long: turbulence, take-off, landings, terrorism, crashes, social anxieties, or being too far from home. Some people fear fire, illness spread through the air system, using the toilets, or violence on a plane.

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Lower levels of inspired oxygen result in increases in intracranial pressure and can subsequently compromise perfusion of some brain regions.

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Plane travel makes jet lag worse because your body moves much faster than your brain and circadian rhythms can process the time change. Other aspects of travel can also contribute to jet lag and may make symptoms worse: Long periods of sitting on a plane. Lack of oxygen and decreased air pressure in the airplane cabin.

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“For the most part, pilots fear those things they cannot control,” Smith wrote. “We are less afraid of committing a fatal error than of finding ourselves victimised by somebody else's error or else at the mercy of forces impervious to our skills or expertise.”

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